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Post by Bullshop on Jun 6, 2018 13:21:11 GMT -7
A hardy BS welcome to our newest member Major, no BS. Welcome Sir and we hope you enjoy time spent here !
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major
Bullet Head
Posts: 4
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Post by major on Jun 7, 2018 1:41:42 GMT -7
Thanks...I visited your site from the invitation card send with some bullets I ordered from you for my 30/40 Krag.
Most often I can be found on the Cas City Forum where I moderate the Henry , Winchester 73. Open Top and The Darksider's Den boards.
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Post by Bullshop on Jun 7, 2018 7:21:48 GMT -7
Well now I have to ask, how did the 30-40 bullets work for you ?
I am a fan of the 30-40 Krag cartridge and rifles. I currently have two Krag rifles but one has been converted to 22 hornet and is a favorite rifle in that caliber. The other is an 1898 rifle that has been set up for high power by beefing up the stock with some laminated sections put in and receiver rear and globe front sights added. Its in great shape and still a fine shooting rifle.
It didn't shoot so well when I first got it as the original barrel was badly fouled by I believe the early cupronickel jacket fouling. That was a terrible pain to get out but now that it is out its a very good shooting barrel. Of course though I only shoot cast bullets through it and as long as I have it nary a jacketed bullet shall pass through its bore.
I recently tried a bullet that has been in my inventory but have previously overlooked in favor of heavier designs the Lyman # 311332 a spitzer gas check design at about 180gn. These were quench hardened to BHN-20 and sized to .310" diameter and Gator chex gas checks used. A load of 33gn of VV-133 put up in RP cases and primed with RP 9 1/2 primers is giving excellent accuracy. I have not chrono graphed the load yet but guess it in the 2000 fps range or slightly less.
I have developed severl good loads but this newest is a top performer in my rifle.
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major
Bullet Head
Posts: 4
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Post by major on Jun 8, 2018 5:58:04 GMT -7
I first tried a .311 coated bullet @ 165 Grains on top of 70% Trailboss in my Krag...results were a OK at 100ft skirmish distance.
The problem was feed the Krag likes a 3.01 inch OAL and the best I could get with the above, was 2.93 inch. on occasion I get rim lock.
I contacted you for the .311; 195 grain GC bullet you suggested, this allows for the correct OAL and with 70% Trailboss feeds quite well.
I will point out I use these loads for shooting steel in Skirmish type short range (50yds max.) shooting. I don't hunt or shoot high power or long range .
I am also working on a load for my Berthier ( 8mm Lebel ) the gun slugs @ .329 ....I have some 205 grain lead bullets cast but without GC's installed
I'm getting some key holing @ 100' with 70% Trailboss, so I'll step up to 80% ....but I think I need to find gas checks for the bullet ...
Granted I'm not pushing the bullets out to 1500 fps maybe 1350 ?
But I think the GC will help stabilize in the Berthier carbine...your thoughts ?
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Post by Bullshop on Jun 8, 2018 12:09:45 GMT -7
My thoughts ? There are a number of variables that could add to the problem your having. To list a few, alloy hardness, powder burn rate, barrel throat diameter, bore condition, groove depth , land height, lube type, and as I have recently learned lube amount, bullet diameter, buffer and possibly others I am not thinking about. Point is it could be a lot of things.
1350 fps should be good without gas checks.
Trail Boss is a pretty fast powder about on the order of Red Dot for burn rate. Maybe slow the burn rate down a bit for a more gentle start?
I am not necessarily suggesting but just saying that in that type of case with fairly large volume to bore size I often get very good results by duplexing smokeless powders using a very slow main powder on the order of 870 with a fairly fast powder on the order of 4198 for a kicker charge. The kicker acts as a longer primer duration so the too slow powder for application has more time to slowly build up pressure for what is usually black powder velocity. My point here is the gentle start!
For a single powder charge that will give a more gentle start I would look at burn rates between 4198 and Reloader #7 or possibly as slow as 3031. If a safe charge is occupying less than 50% of case volume I would fill the remainder of the case with Styrofoam packing popcorn as I always do in such situations.
That's what I am thinking.
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Post by todddoyka on Jun 9, 2018 11:46:11 GMT -7
my krag just luvs the (.311") 165gr ranch dogs using 25.5gr of h4198(1800fps). it goes around 1 1/2 - 2 1/2" at 100 yards(5 shots/benched). its an all-rounder...hunting, targets, soda cans..... i can't do OAL, the boolit only goes 1/16 -1/8" in the case. so the boolit goes into the crimp groove, then it is crimped and there ya have it, a 30-40 krag cast round. |
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Post by todddoyka on Jun 9, 2018 11:49:33 GMT -7
If a safe charge is occupying less than 50% of case volume I would fill the remainder of the case with Styrofoam packing popcorn as I always do in such situations. That's what I am thinking. i use dacron wadding for the 444 marlin and the 45-70. |
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Post by todddoyka on Jun 9, 2018 13:22:16 GMT -7
30-40 krag with 165gr ranch dog 1-6 i am trying to zero it. 7 - 10 it is zeroed at 100 yards.(25.5gr of h4198)  other powders     the one on the right and left is a 165gr rd  |
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Post by Bullshop on Jun 9, 2018 17:00:33 GMT -7
All the powders you show here Tod are within the burn rate I have suggested with the possible exception of Varget but if it is not within that range it is just barely out side of it on the slow side. I will have to check a burn rate chart to be sure.
And BTW darn nice shooting.
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Post by todddoyka on Jun 9, 2018 19:24:56 GMT -7
All the powders you show here Tod are within the burn rate I have suggested with the possible exception of Varget but if it is not within that range it is just barely out side of it on the slow side. I will have to check a burn rate chart to be sure. And BTW darn nice shooting. thanks!!! well, you made them. i just shoot them. varget was good, but i noticed a definite "kick", not much, but still a "kick". velocity tops out at 34.0gr(varget) at around 2000fps on the 165gr rd(lyman 49th ed.). the "kick" is the reason i went to h4198. h4198 does not have a "kick" , its more along the lines of a very light "push". |
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